HTP SSU-20PH - Manual (Page 7)

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LP-21A Rev. 3.24.14
Figure 4 – Pool Heater Control to Boiler Control Wiring
B. SENSOR INSTALLATION
Proper sensor installation is critical
for reliable and efficient operation.
The sensor should be located as
close to the inlet of the pool heater
(pipe running from the pool filter) as
possible.
Mount sensor by following
instruction in Figure 4. If the wiring
needs to be longer, use commonly
available thermostat “TT” wire on
the transformer line to the boiler. If
a standard control is used, install a
tee in the inlet line and use a
standard aquastat well to mount the
control bulb.
Figure 5 – Sensor Mounting and Installation